package com.march.api.utils;

import com.auth0.jwt.JWT;
import com.auth0.jwt.JWTCreator;
import com.auth0.jwt.algorithms.Algorithm;
import com.auth0.jwt.interfaces.DecodedJWT;

import java.util.Calendar;
import java.util.Map;

public class JWTUtils {

    private static final String SING = "!@#$/*-QRIU234^&^Y*";

    public static String getToken(Map<String, String> map) {

        Calendar instance = Calendar.getInstance();
        instance.add(Calendar.DATE, 7);  //七天过期

        JWTCreator.Builder builder = JWT.create();
        map.forEach(
                (K, V) -> {
                    builder.withClaim(K, V);
                }

        );
        String token = builder
                .withExpiresAt(instance.getTime())
                .sign(Algorithm.HMAC256(SING));
        return token;
    }

    /**
     * 验证token合法性
     */
    public static void verify(String token) {
        DecodedJWT verify = JWT.require(Algorithm.HMAC256(SING)).build().verify(token);
    }

    /**
     * 获取token信息
     */
    public static DecodedJWT getTokenInfo(String token) {
        DecodedJWT verify = JWT.require(Algorithm.HMAC256(SING)).build().verify(token);
        return verify;
    }
}
